Regarding Patella safiana etc.: All my thanks to Mr Richard Petit. Henk Mienis and this gentleman are the two columns that sustain the edifice of my little knowledge; always fragile, incomplete, tiny and never sure; but with these two legs, one moves, step by step. Richard, as the mails that I post seem to never reach your server (delivery failure etc.), allow me to glorify you in public. Music! Excuse me fellows, but if we cannot thank people who help us, where are we going? Olivier caro ---------------------------------------------------------------------- [log in to unmask] - a forum for informal discussions on molluscs To leave this list, click on the following web link: http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1 Type your email address and name in the appropriate box and click leave the list. ----------------------------------------------------------------------